DE69021418T2 - Polarizing beam splitter and system for image projection through light valves. - Google Patents
Polarizing beam splitter and system for image projection through light valves.Info
- Publication number
- DE69021418T2 DE69021418T2 DE69021418T DE69021418T DE69021418T2 DE 69021418 T2 DE69021418 T2 DE 69021418T2 DE 69021418 T DE69021418 T DE 69021418T DE 69021418 T DE69021418 T DE 69021418T DE 69021418 T2 DE69021418 T2 DE 69021418T2
- Authority
- DE
- Germany
- Prior art keywords
- beam splitter
- image projection
- polarizing beam
- light valves
- valves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1396—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1396—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
- G02F1/1398—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell the twist being below 90°
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2203/00—Function characteristic
- G02F2203/02—Function characteristic reflective
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Polarising Elements (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1070880A JPH0738050B2 (en) | 1989-03-23 | 1989-03-23 | Polarization beam splitter device and light valve optical device using the device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69021418D1 DE69021418D1 (en) | 1995-09-14 |
DE69021418T2 true DE69021418T2 (en) | 1996-03-14 |
Family
ID=13444298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69021418T Expired - Fee Related DE69021418T2 (en) | 1989-03-23 | 1990-03-20 | Polarizing beam splitter and system for image projection through light valves. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0389240B1 (en) |
JP (1) | JPH0738050B2 (en) |
DE (1) | DE69021418T2 (en) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4016896A1 (en) * | 1990-05-25 | 1991-11-28 | Leitz Messtechnik | OPTICAL DEVICE FOR SELECTIVELY ACHIEVING LIGHT AND FLOODLIGHTING |
JPH07113709B2 (en) * | 1990-09-21 | 1995-12-06 | 松下電器産業株式会社 | Projection display device |
US5381278A (en) * | 1991-05-07 | 1995-01-10 | Canon Kabushiki Kaisha | Polarization conversion unit, polarization illumination apparatus provided with the unit, and projector provided with the apparatus |
JPH05154106A (en) * | 1991-11-29 | 1993-06-22 | Asahi Optical Co Ltd | Sight line detecting device |
FR2685100A1 (en) * | 1991-12-17 | 1993-06-18 | Thomson Csf | OPTICAL POLARIZATION SEPARATOR AND APPLICATION TO A VISUALIZATION SYSTEM. |
US5576854A (en) * | 1993-11-12 | 1996-11-19 | Hughes-Jvc Technology Corporation | Liquid crystal light valve projector with improved contrast ratio and with 0.27 wavelength compensation for birefringence in the liquid crystal light valve |
JPH1164852A (en) * | 1997-08-21 | 1999-03-05 | Hitachi Ltd | Projection type liquid crystal display device |
GB2330422A (en) * | 1997-10-17 | 1999-04-21 | Sharp Kk | Reflective liquid crystal device |
US6052231A (en) * | 1998-01-21 | 2000-04-18 | International Business Machines Corporation | Beam dividing elements permitting projection of an image with high contrast |
US6111618A (en) * | 1998-02-23 | 2000-08-29 | Lightware, Inc. | LCD projector illumination system having blue and red dichroic mirrors positioned such that blue mirror receives light before red mirror |
KR100336696B1 (en) | 1999-12-08 | 2002-05-13 | 고연완 | Apparatus and method for detecting polarization |
JP2002207213A (en) | 2001-01-11 | 2002-07-26 | Hitachi Ltd | Liquid crystal display element or display device using the same |
US6511183B2 (en) | 2001-06-02 | 2003-01-28 | Koninklijke Philips Electronics N.V. | Digital image projector with oriented fixed-polarization-axis polarizing beamsplitter |
JP2003222724A (en) | 2002-01-31 | 2003-08-08 | Hitachi Ltd | 1/4 wavelength plate, optical unit and reflection liquid crystal display using the same |
JP3970055B2 (en) | 2002-02-28 | 2007-09-05 | キヤノン株式会社 | Liquid crystal display |
GB0211353D0 (en) * | 2002-05-17 | 2002-06-26 | Qinetiq Ltd | Apparatus for redirecting radiation |
JP4040484B2 (en) * | 2003-01-31 | 2008-01-30 | キヤノン株式会社 | Polarization separation optical system, projection display optical system, projection image display apparatus, and image display system |
JP4422986B2 (en) * | 2003-08-22 | 2010-03-03 | キヤノン株式会社 | Image display device |
JP4794839B2 (en) | 2004-09-17 | 2011-10-19 | キヤノン株式会社 | Reflective liquid crystal display |
JP4856863B2 (en) * | 2004-09-17 | 2012-01-18 | キヤノン株式会社 | Projection type image display apparatus and adjustment method used therefor |
US8593157B2 (en) | 2005-02-15 | 2013-11-26 | Walleye Technologies, Inc. | Electromagnetic scanning imager |
WO2006088845A2 (en) | 2005-02-15 | 2006-08-24 | Walleye Technologies, Inc. | Electromagnetic scanning imager |
US8253619B2 (en) | 2005-02-15 | 2012-08-28 | Techtronic Power Tools Technology Limited | Electromagnetic scanning imager |
US7357511B2 (en) | 2005-03-23 | 2008-04-15 | 3M Innovative Properties Company | Stress birefringence compensation in polarizing beamsplitters and systems using same |
JP2007102101A (en) | 2005-10-07 | 2007-04-19 | Canon Inc | Illumination optical system and image projection device having the same |
JP2007233407A (en) * | 2007-04-23 | 2007-09-13 | Canon Inc | Liquid crystal display device |
JP4499770B2 (en) * | 2007-09-06 | 2010-07-07 | 富士フイルム株式会社 | Polarization control system and projector |
JP4821755B2 (en) * | 2007-10-18 | 2011-11-24 | 株式会社ニコン | Projector device |
US8537290B2 (en) | 2007-10-18 | 2013-09-17 | Nikon Corporation | Projector apparatus |
JP4867888B2 (en) * | 2007-10-22 | 2012-02-01 | 株式会社ニコン | Projector device |
JP5084041B2 (en) * | 2008-06-03 | 2012-11-28 | 富士フイルム株式会社 | Projection display |
WO2010060143A1 (en) * | 2008-11-26 | 2010-06-03 | Digislide Holdings Limited | A compact critical imaging optical system for an lcd or lcos projector |
JP5767433B2 (en) | 2009-07-31 | 2015-08-19 | キヤノン株式会社 | Projection type image display device |
JP5312426B2 (en) * | 2010-10-18 | 2013-10-09 | キヤノン株式会社 | Reflective liquid crystal display |
JP4984005B2 (en) * | 2011-11-10 | 2012-07-25 | 株式会社ニコン | Projector device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3497283A (en) * | 1966-08-24 | 1970-02-24 | Bausch & Lomb | Color selection polarizing beam splitter |
US4464018A (en) * | 1981-12-28 | 1984-08-07 | Hughes Aircraft Company | Liquid crystal light valve image projection system with color selective prepolarization and blue mirror |
JPS6113885A (en) * | 1984-06-29 | 1986-01-22 | Sony Corp | Projecting type picture image display device |
US4723077A (en) * | 1985-12-06 | 1988-02-02 | Hughes Aircraft Company | Dual liquid crystal light valve based visible-to-infrared dynamic image converter system |
-
1989
- 1989-03-23 JP JP1070880A patent/JPH0738050B2/en not_active Expired - Fee Related
-
1990
- 1990-03-20 EP EP90302969A patent/EP0389240B1/en not_active Expired - Lifetime
- 1990-03-20 DE DE69021418T patent/DE69021418T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0738050B2 (en) | 1995-04-26 |
EP0389240B1 (en) | 1995-08-09 |
EP0389240A2 (en) | 1990-09-26 |
JPH02250026A (en) | 1990-10-05 |
EP0389240A3 (en) | 1991-03-06 |
DE69021418D1 (en) | 1995-09-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |